Sleeve-valve motor



Nova 17, 1925: 1,561,709

E. W. FORAN SLEEVE VALVE} MOITOR Filed Sepc. 10, 1923 4 Sheets-Sheet 1 if s; w 1

EL LU R? i a) 1 c 1 ATTORNEY Nmn W, 1925- E. W. FORAN SLEEVE VALVE MOTOR Filed Sept. 10, 1925 4 Sheet-Sheet 2 XNVENTOR ATTORNEY NOV. 17, 925. 156L709 E, W, FURAN SLEEVE VALVE MOTOR Filed Sept. 10, 1925 4 Shee set 5 INVENTOR E. W. FORAN SLEEVE VALVE MOTOR Nov. 17

Filed Sept. 10, 1923 4 Sheets-Sheet 1 &w%

NITHESS:

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Application filed Beptemher To all whom it may conocmr 'ltle it known that I, EMMET W.- F citizen of the United Custer, in the ElOuthDa-kota,

ones, :1. States, residing at county of Custer and State of have invented new and useful Improvements in Sleeve-Valve Motors, of which the following is a. specification.

This invention relates to internal coinhustion engines, particularly those of the scrolled valveless type, and has for its object the provision cat a novel engine in which use oi the ordinary tappet or poppet valve is eliminated, the 1ntakc and exhaust being controlled by a rotary valve operating within e sleeve.

.tlJl important object is the provision of an engine of this character which is provided with a highly eflicient and positive lubricating system which will insure thorough oiling of all the parts at all times so that overheating and burning out of the bearings will be prevented.

Another object is the provision of an engine of this character which will be comparatively simple and inexpensive in manufacture, which will embody the minimum. number of parts, which will be positive in action, eflicient and durable in service and a general improvement in the art.

With the above and other objects and advantages in view the invention consists in the details of cons more fully describ ated in the ace h: ure 1 is a side elevation ofthe engine liigure 2 is a plan view thereof, i ignre 3 is a longitudinal section taken axially of all the cylinders,

Figure is a cross section taken thro the center of one cylinder,

Figure 5 is a cross oi Figure 4,

Figure 6 is a side elevation oi the sleeve removed from the engine,

l igure'l is a side elevation of the valve removed from the engine,

Figure 8 is a plan section of the oil pump,

Figure 9 is a section on the line 9-9 oi" Figure 8. I

Referring more particularly to the drawings the numeral 10 designates the cylinder block mounted upon a crank case 11 eiid ed and claimed and illusompanying drawings, ID.

ugh

carrying a removable head-12. The block.

may heformed' with any desired number. of

truction to be hereinafter section on the line ti--5 cylinders though iii-the present instance four are shown as being sufficient to illustrate the construction, aeration and advantages. Journaled throng l the crank case mounted in any suitable or ordinary bean ings is the crank shaft 13 formed with plurality of crank portions 14 and carrying the usual fly wheel 15. The forward end of the crank shaft may be constructed for engagement by a suitable era-11h; to efiect l turning over of the motor for starting though these details are old and well lrnov l 'and no claim is made thereto. @perating within the cylinders are pistons 16 connected with connecting rods 17 which are in turn engaged upon the crank portions 1% oi the crank shaft in the usual manner.

The head 12 is formed with a chamber 18 within which is located a removably mount ed sleeve 19 which is held stationary by any i desired means. The head is formed vvitl ports 20 for the intake and exhaust of 1? el mixture and burnt gases respectively. i top of the head is formed with two oldie 1 ports 21 which lead into an exhaust mane fold 22 while the central portion of the head is formed with a. single port 23 leadingthe intake manifold 24 which must neturally lead from any suitable carburetor not shown. The sleeve 19 is formed with ports 25, 26 and 2? which register with the ports 20, 21 and 23 respectively.

Journaled through the sleeve 19 is a rotary valve 28 equipped one end with sprocket 29 about which is trained a silent chain. 30 which is in turn trained. about sprocket. 31 on the crank so that the i ve-will he positively driven thereby. Th 5 valve "l8 provided with eight ports 32 arranged at: rious angles and is also. formed with tines deep slots 33 and The former cit these slots are arranged near the ends and the lat ter is at the center, The ports'tlFl are de signed to register with the portsilti while the slots 33 register with the ports 25 and he single slot at registers with the port 2?. Tillie ed with. a plurality of lllti Eva to the slot 34 so as to control the inlet and exhaust.

For effecting lubrication I provide a suitable oil pump 38 driven by or from the crank shaft by the means indicated at 4:5 and having connected therewith distributing pipes 50 which are brought to certain points to helubricated as shown. The cylinders and most other parts are lubricated by the splash it is not necessary to provide a force feed in every instant. The valve is formed with oil grooves 51 which will provide adequate means for ellectinn lubrication. The engine is of: course provided with the usual water jacket 52 and spark plugs 53 located at the points shown or at some other location.

. In the operation it will be apparent that when the motor is running, the crank shaft drives the valve and as the various ports in the valve register with the ports in the sleeve which in turn register with the ports in the head, the exhaust of burnt. eases and intake of fresh fuel mixture is controlled.

As the various passages in the rotary valve communicate always with the slots in the valve and as these slots in turn always communicate with the intake and exhaust ports in the sleeve it is obvious that the intake and exhaust occur at the very instant that the ports 25 are uncovered so that there will be no retardation of the action which might cause sluggishness on account of back pressure or any other cause.

From the foregoing description and a study of the drawings it will be apparent that I have thus. provided a simply constructed and consequently inexpensive enine which entirely eliminates use of the ordinary tappet valves and which would therefore be far more silent in operation than most motors in addition to furnishing maxi trouble.

\Vhile I have shown and describedthe preferred embodiment of the invention it is of course to be understood that I reserve the right to make such changes in the form,

construction and arrangement of parts as will not depart from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention claim:

In a multiple cylinder tion engine, a head common the ends of all the cylinders, said head having a cylindrical bore therein, a sleeve stationarily mounted within said here, the head having chambers communicating with the internal combusborc, and with the respective cylinders, said sleeve having a pair of ports at each chamber communicating therewith, and a solid cylindri 'al valve rotatably mounted within the sleeve and constrained from longitudinal movement, said valve groove in its periphery and passages communicating at their inner ends with said groove, the valve having ports at its outer ends of said passages and at points intermediatethe ends of the passages for communication with certain of said first named ports, the end portions of the valves being provided with peripheral grooves registering constantly with exhaust passages formed in the head, said first named peripheral ing constantly with an intake passage formed through the head and the valve be ing provided. with longitudinally extending passages communicating, at their outer ends with said exhaust ports at their inner and intermediate points with the remaining ones of said first named ports.

EMMET W. FOR AN.

to and closing 55 having a central e5 groove register-f and communicating 8 

